Padlock.



n. E. SAGE m. N. MARS.

PADLOOK. APPLICATION FILED NOV. 2, 1910.

Patehted Mar. 14, 1911;

- INVENTORS WITNESS S TED STATEEBATENT OFFTC DAVID E. SAGE AND FERDINAND N. MAES, OF FORREST, ILLINOIS.

PADLOCK.

Specification of Letters Patent.

Patented Mar. 1 1, 1911.

Application filed November 2, 1910. Serial No. 590,303.

To all whom "it may concern:

Be it known that we, DAVID E. SAGE and FERDINAND N. Mans, citizens of the United States, residing at Forrest, in the county of Livingston and State of Illinois, have invented certain new and useful Improvements in Padlocks; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to new and useful improvements in padlocks and our object is to provide tumblers having means thereon for locking the hasp in its closed position.

A further object is to so arrange the tumblers and shank of the hasp whereby said tumblers must be turned to a predetermined position before the hasp can be moved to release the same from an object, and, a further object is to provide means for limiting the movement of the hasp in one direction.

Gther objects and advantages will be hereinafter set forth and pointed out in the specification.

In the accompanying drawings, which are made a part of this application, Figure 1 is a side elevation of the lock. Fig. 2 is a top plan View thereof. Fig. 3 is a sectional view as seen on line 3-3, Fig. 3, and, Fig. 4: is a sectional view as seen on line 4-4, Fig. 3.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 indicates the body of the lock, which is preferably oblong in cross section, and is provided in its upper edge with openings 2 and 3 for the reception of the shank and stem t and 5, respectively, of the hasp 6, said hasp being substantially U-shaped in general outline. The opening 2 develops into a chamber 7 in which are placed a plurality of tumblers 8, said tumblers being introduced from the lower edge of the body 1 and are provided with central opening 9 to receive the shank 4 of the hasp. The tumblers 8 are held in position in the chamber 7 by placing a plug 10 in the lower end of the chamber, said plug being held in position in any preferred manner. The shank 4 also projects through an opening in the plug to a distance below the body, the lower end of the shank being provided with a removable head 11 to limit the longitudinal movement of the hasp in one direction, or to prevent the shank from being moved out of engagement with the tumblers when the padlock is in its unlocked position. The tumblers are employed for holding the hasp in its closed position by providing each tumbler with a prong 12, which prongs, when the device is in a locked position, enter circumferential grooves 13 in the shank A, there being one groove for each prong.

The shank 4 is also provided with a longitudinally extending channel 13 so that when all of the prongs of the various tumblers are turned into registration with said channel, the hasp may be elevated to disengage the stem portion thereof from the opening 3, when the hasp may be disengaged from the staple or other object with which it is engaged.

One portion of the wall surrounding the chamber 7 is removed to form an open space 14, thus exposing a portion of the peripheral faces of the tumblers, and in order to ascertain when the tumblers are turned to the proper position to bring the tumblers in registration with the channel 13, characters such as numerals, or the like, are placed on the peripheral faces of the tumblers, and between the characters are preferably placed division lines 15. If preferred, an indicative point 16 may be placed on the face of the body 1, in position to register with the division lines or other parts of the tumblers, said indicative point being so placed as to bring the prongs into registration with the channel 13 when the proper division line has been brought into registration with the point.

Extending transversely through the body 1 and communicating with the lower end of the opening 3, is an enlarged opening 17 and as the opening 3 communicates with the opening 17, should any obstruction become lodged therein it can be readily removed. The opening 17 will also serve to admit the introduction of the finger through the opening when it is desired to disengage the stem of the hasp from its opening.

In operation suppose the hasp to be in its locked position and the combination of the tumblers known, all of said tumblers are turned to their proper position so as to bring the prongs thereon in registration with the channel 13 and also in registration with each other. A downward pull is then given to the body of the lock, which may be more readily accomplished by introducing the finger through the opening 17 this operation moving the shank lengthwise through the tumblers until the head 11, or other device employed for limiting the movement of the shank, engages the plug in the lower end of the tumbler chamber. This I movement will release the stem 5 from its opening, when the hasp may be disengaged from the staple, or other object with which the hasp is engaged, and, if necessary, the hasp may be given a quarter turn from its normal position. As soon as the hasp is again engaged with an object the stem" 5 1s moved into its opening and the tumblers be forgotten, the plug may be removed so as it will not be necessary to mutilate or destroy other parts of the padlock to get the same open.

It will further be seen that this device can be very compactly built and at the same time rendered strong and durable andthat the parts thereof can be securely locked together without the employment of a' key. It will likewise be understood that a knowledge of respective groovesthe combination of the tumblers will be necessary before the lock can be operated.

What we claim is:

A look comprising a body having vertical openings adjacent each edge thereofand a transverse opening through the body, one of said vertical openings terminating in the transverse opening and the other opening terminating .in a chamber, a hasp terminating in a shank and stem, said shank extending through said chamber and the opening communicating therewith and having a pluralityof circumferential grooves and a 1011- gitudinal channel intersecting said grooves and extending beyond the same, tumblers surrounding the shank and having prongs adapted to cooperate with said grooves and channel, a portion of the wall of said chamber being removed to exposeportions of the surface of said tumblers and means to determine the position of said tumblers to bring all of said prongs in registration with the channel, said channel being so arranged whereby when the shank is elevated all of said tumblers will rotate with the shank when the shank is rotated.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

DAVID E. SAGE. FERDINAND N. MAES. Witnesses:

JOHN HACKER, JAMES HARKLEY.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. 0.

Commissioner of Patents, 

